xref: /original-bsd/usr.bin/tip/cu.c (revision a6ded71d)
1 /*
2  * Copyright (c) 1983 Regents of the University of California.
3  * All rights reserved.  The Berkeley software License Agreement
4  * specifies the terms and conditions for redistribution.
5  */
6 
7 #ifndef lint
8 static char sccsid[] = "@(#)cu.c	5.4 (Berkeley) 09/14/87";
9 #endif not lint
10 
11 #include "tip.h"
12 
13 int	cleanup();
14 int	timeout();
15 
16 /*
17  * Botch the interface to look like cu's
18  */
19 cumain(argc, argv)
20 	char *argv[];
21 {
22 	register int i;
23 	static char sbuf[12];
24 
25 	if (argc < 2) {
26 		printf("usage: cu telno [-t] [-s speed] [-a acu] [-l line] [-#]\n");
27 		exit(8);
28 	}
29 	CU = DV = NOSTR;
30 	BR = DEFBR;
31 	for (; argc > 1; argv++, argc--) {
32 		if (argv[1][0] != '-')
33 			PN = argv[1];
34 		else switch (argv[1][1]) {
35 
36 		case 't':
37 			HW = 1, DU = -1;
38 			--argc;
39 			continue;
40 
41 		case 'a':
42 			CU = argv[2]; ++argv; --argc;
43 			break;
44 
45 		case 's':
46 			if (argc < 3 || speed(atoi(argv[2])) == 0) {
47 				fprintf(stderr, "cu: unsupported speed %s\n",
48 					argv[2]);
49 				exit(3);
50 			}
51 			BR = atoi(argv[2]); ++argv; --argc;
52 			break;
53 
54 		case 'l':
55 			DV = argv[2]; ++argv; --argc;
56 			break;
57 
58 		case '0': case '1': case '2': case '3': case '4':
59 		case '5': case '6': case '7': case '8': case '9':
60 			if (CU)
61 				CU[strlen(CU)-1] = argv[1][1];
62 			if (DV)
63 				DV[strlen(DV)-1] = argv[1][1];
64 			break;
65 
66 		default:
67 			printf("Bad flag %s", argv[1]);
68 			break;
69 		}
70 	}
71 	signal(SIGINT, cleanup);
72 	signal(SIGQUIT, cleanup);
73 	signal(SIGHUP, cleanup);
74 	signal(SIGTERM, cleanup);
75 
76 	/*
77 	 * The "cu" host name is used to define the
78 	 * attributes of the generic dialer.
79 	 */
80 	if ((i = hunt(sprintf(sbuf, "cu%d", BR))) == 0) {
81 		printf("all ports busy\n");
82 		exit(3);
83 	}
84 	if (i == -1) {
85 		printf("link down\n");
86 		delock(uucplock);
87 		exit(3);
88 	}
89 	setbuf(stdout, NULL);
90 	loginit();
91 	user_uid();
92 	vinit();
93 	setparity("none");
94 	boolean(value(VERBOSE)) = 0;
95 	if (HW)
96 		ttysetup(speed(BR));
97 	if (connect()) {
98 		printf("Connect failed\n");
99 		daemon_uid();
100 		delock(uucplock);
101 		exit(1);
102 	}
103 	if (!HW)
104 		ttysetup(speed(BR));
105 }
106